运维网站访问速度很慢，如何检查并定位哪里是瓶颈？[问题作废]

diguage · 2014年09月26日 · 最后由 diguage 回复于 2014年09月28日 · 7163 次阅读

昨晚和今天又测试，访问速度刚刚的。所以，这个问题作废。至于监控相关内容，我也在学习，以后另外发帖补充。谢谢！

为了加快访问速度，同时也为了能使用更多的国内服务，我把我的“‘地瓜哥’博客网”搬到了阿里云上。

备案今天审核完成。然后就把网站给搭起来了。

But，访问速度超慢。测试站点：地瓜哥测试站点。还不如我原来在美国的虚拟主机上快。

请问：如何检测并定位一个网站的速度瓶颈？监控这块一直比较薄弱，希望大家给指条路！

补充：

还是上面的测试站点，中午访问巨慢。刚刚试了一下，速度还可以。 莫非阿里云表现不稳定，故意特马耍我？

附录

阿里云配置：

CPU：1 核
内存：1GB
数据盘：0G（没单独买，这是默认大小，大概是 20G）
带宽：1Mbps

软件配置

应用

Wordpress 4.0（刚刚的测试站点）

数据库

$ mysql -V
mysql  Ver 14.14 Distrib 5.6.20-68.0, for debian-linux-gnu (x86_64) using  EditLine wrapper


# 登录后，提示如下：
Server version: 5.6.20-68.0 Percona Server (GPL), Release 68.0, Revision 656

可能好多人没有见过Percona Server，简单介绍一下，它是一个类 MySQL 数据库，在 MySQL 的基础上做了大量的优化，据说性能提升很多。大家可以看他们公司人员和别人合著的一本书：高性能 MySQL (豆瓣)。

Nginx

$ nginx -v
nginx version: nginx/1.6.2

PHP：

$ php -v
PHP 5.5.17-2+deb.sury.org~trusty+1 (cli) (built: Sep 25 2014 09:06:49)
Copyright (c) 1997-2014 The PHP Group
Zend Engine v2.5.0, Copyright (c) 1998-2014 Zend Technologies
    with Zend OPcache v7.0.4-dev, Copyright (c) 1999-2014, by Zend Technologies

Kernel：

$ uname -a
Linux iZ250j5jy9cZ 3.13.0-36-generic #63-Ubuntu SMP Wed Sep 3 21:30:07 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

OS

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 14.04.1 LTS
Release:    14.04
Codename:   trusty

访问日志

66.175.221.233 - - [26/Sep/2014:18:17:43 +0800] "GET / HTTP/1.1" 200 3117 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.124 Safari/537.36"
66.175.221.233 - - [26/Sep/2014:18:18:05 +0800] "GET / HTTP/1.1" 200 3117 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.124 Safari/537.36"
66.175.221.233 - - [26/Sep/2014:18:18:08 +0800] "GET /wp-content/themes/twentyfourteen/genericons/genericons.css?ver=3.0.3 HTTP/1.1" 304 0 "http://test.diguage.com/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.124 Safari/537.36"
66.175.221.233 - - [26/Sep/2014:18:18:08 +0800] "GET /wp-includes/js/jquery/jquery.js?ver=1.11.1 HTTP/1.1" 304 0 "http://test.diguage.com/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.124 Safari/537.36"
66.175.221.233 - - [26/Sep/2014:18:18:08 +0800] "GET /wp-content/themes/twentyfourteen/js/functions.js?ver=20140616 HTTP/1.1" 304 0 "http://test.diguage.com/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.124 Safari/537.36"
66.175.221.233 - - [26/Sep/2014:18:18:08 +0800] "GET /wp-includes/js/jquery/jquery-migrate.min.js?ver=1.2.1 HTTP/1.1" 304 0 "http://test.diguage.com/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.124 Safari/537.36"
66.175.221.233 - - [26/Sep/2014:18:18:08 +0800] "GET /wp-content/themes/twentyfourteen/style.css?ver=4.0 HTTP/1.1" 304 0 "http://test.diguage.com/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.124 Safari/537.36"
66.175.221.233 - - [26/Sep/2014:18:18:15 +0800] "GET /archives/4.html HTTP/1.1" 200 3872 "http://test.diguage.com/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.124 Safari/537.36"
66.175.221.233 - - [26/Sep/2014:18:18:18 +0800] "GET /archives/1.html HTTP/1.1" 200 4445 "http://test.diguage.com/archives/4.html" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.124 Safari/537.36"
66.175.221.233 - - [26/Sep/2014:18:18:27 +0800] "GET /archives/category/%e6%b5%8b%e8%af%95%e5%88%86%e7%b1%bb HTTP/1.1" 200 2964 "http://test.diguage.com/archives/1.html" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.124 Safari/537.36"
66.175.221.233 - - [26/Sep/2014:18:18:31 +0800] "GET /archives/date/2014/09 HTTP/1.1" 200 3155 "http://test.diguage.com/archives/category/%e6%b5%8b%e8%af%95%e5%88%86%e7%b1%bb" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.124 Safari/537.36"